Analysis Summary
Notes:
- 1) No attempt has been made to eliminate the non-significant decimal places.
- 2) This batgrbproduct analysis is done using the HEASARC data.
- 3) This batgrbproduct analysis is using the flight position for the mask-weighting calculation.
==========================================================================
BAT GROUND-DETECTED GRB DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.46
Process Start Time: Tue Dec 15 16:58:07 EST 2015
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/ground_detect_bursts/scripts
======================================================================
Trigger: 00664653 Segment: 000
BAT Trigger Time: 469904452.8
UTC: 2015-11-22T17:00:52.800 [includes UTCF correction]
Where From?: Ground analysis (best_duration.txt)
NOTE: BAT trigger time for ground-detected burst is the T100 start time.
Analysis Position: [ source = GCN ]
RA: not Dec: available) [deg; J2000]
Refined Position: [ source = BAT pre-slew image ]
RA: 299.695725534 Dec: -19.8612331446 [deg; J2000]
{ 19h 58m 47.0s , -19d -51' -40.4" }
+/- 1.51584677277 [arcmin] (estimated 90% radius based on SNR)
SNR: 16.791759008
Angular difference between the analysis and refined position is 3733.786238 arcmin
Partial Coding Fraction: 0.859375 [ including projection effects ]
Duration
T90: 36.8000000715256 +/- 1.6
Measured from: 1.6
to: 38.4 [s; relative to TRIGTIME]
T50: 20.8000000715256 +/- 1.6
Measured from: 9.6
to: 30.4 [s; relative to TRIGTIME]
====== Table of the duration information =============================
Value tstart tstop
T100 40.000 0.000 40.000
T90 36.800 1.600 38.400
T50 20.800 9.600 30.400
Peak 1.000 8.300 9.300
====== Spectral Analysis Summary =====================================
Model : spectral model: simple power-law (PL) and cutoff power-law (CPL)
Ph_index : photon index: E^{Ph_index}
Ph_90err : 90% error of the photon index
Epeak : Epeak in keV
Epeak_90err: 90% error of Epeak
Norm : normalization at 50 keV in both the PL model and CPL model
Nomr_90err : 90% error of the normalization
chi2 : Chi-Squared
dof : degree of freedo
=== Time-averaged spectral analysis ===
(Best model with acceptable fit: PL)
Model Ph_index Ph_90err_low Ph_90err_hi Epeak Epeak_90err_low Epeak_90err_hi Norm Nomr_90err_low Norm_90err_hi chi2 dof
PL -1.664 -0.151 0.149 - - - 4.88e-03 -4.24e-04 4.20e-04 52.550 57
CPL -1.605 -0.692 0.591 288.198 -270.957 -288.198 5.24e-03 -1.76e-03 5.18e-03 52.540 56
=== 1-s peak spectral analysis ===
(Best model with acceptable fit: PL)
Model Ph_index Ph_90err_low Ph_90err_hi Epeak Epeak_90err_low Epeak_90err_hi Norm Nomr_90err_low Norm_90err_hi chi2 dof
PL -1.948 -0.318 0.297 - - - 7.06e-03 -1.45e-03 1.40e-03 70.380 57
CPL -1.549 -0.855 2.136 46.310 N/A N/A 1.21e-02 N/A N/A 70.140 56
=== Fluence/Peak Flux Summary ===
Model Band1 Band2 Band3 Band4 Band5 Total
15-25 25-50 50-100 100-350 15-150 15-350 keV
Fluence PL 7.30e-08 1.21e-07 1.53e-07 3.86e-07 4.55e-07 7.34e-07 erg/cm2
90%_error_low -9.89e-09 -1.02e-08 -1.78e-08 -8.76e-08 -4.17e-08 -1.04e-07 erg/cm2
90%_error_hi 1.02e-08 1.02e-08 1.78e-08 1.04e-07 4.21e-08 1.16e-07 erg/cm2
Peak flux PL 4.48e-01 3.46e-01 1.79e-01 1.34e-01 1.04e+00 1.11e+00 ph/cm2/s
90%_error_low -1.06e-01 -5.70e-02 -4.72e-02 -5.77e-02 -1.71e-01 -1.83e-01 ph/cm2/s
90%_error_hi 1.11e-01 5.70e-02 4.80e-02 7.96e-02 1.71e-01 1.84e-01 ph/cm2/s
Fluence CPL 7.24e-08 1.22e-07 1.54e-07 3.51e-07 4.53e-07 6.99e-07 erg/cm2
90%_error_low -1.15e-08 -1.07e-08 -1.81e-08 -2.05e-07 -4.70e-08 -2.11e-07 erg/cm2
90%_error_hi 9.44e-09 1.26e-08 1.85e-08 5.33e-08 4.38e-08 1.45e-07 erg/cm2
Peak flux CPL 4.33e-01 3.64e-01 1.77e-01 7.37e-02 1.02e+00 1.05e+00 ph/cm2/s
90%_error_low -1.21e-01 N/A -6.44e-02 -7.37e-02 -1.81e-01 -2.05e-01 ph/cm2/s
90%_error_hi 1.17e-01 N/A 5.12e-02 7.70e-02 1.78e-01 2.45e-01 ph/cm2/s
======================================================================
Special notes of this burst